Does Vcore affect RAM?

[nms499]

I've been O/C'ing my new rig for 2 weeks and this is what I think I have learned, please correct me if I'm wrong.

 

Prime95 errors come mainly from underclocked Vcore's and crashes and BSOD are from RAM settings. I believe that is what I read and I can overclock my CPU to over 4Mhz and underclock my RAM and be stable for 24 hours running Prime but start messing with my RAM and I see BSOD and crashes.

 

Raise my BLCK over 174 with an SPD of 8 (or higher) and my rig won't boot. I've tried everything I can think of or been suggested and I just think my RAM won't do it, or my MB won't let it try.

 

So I dropped my CPU multi down to 19 ( no luck with anything lower) to go with my 6 SPD to get the most memory freq for the buck and set BLCK at 191. QPI is at 36, do you ever use anything else? Uncore is at 17, I read your suppose to double SPD or double plus one 1 but I can get it stable at 17, anything lower would just lower performance. Haven't tried anything because I doubt I could and even if I could I doubt the performance increase would be worth the effort.

 

Best timing I think will prove to be stable are 9-8-8-19. Thought I had 8-8-8-18 but crashed. I read i7 930 Bloomfield doesn't recognize 1333 RAM, sees it as 1066. Is it true?

 

So I think my O/C is done once I am sure my timings are stable. Pretty satisfied with my result if a little disappointed I didn't buy better RAM. I stress with Prime 95 and MemTest86 at the same time and bench my RAM with MaxxMEM to see what timings are better.

 

I can get a stable O/C of my CPU with a 1.26250 Vcore but will run it at 1.275 just because. My high temp with Prime running is around 80c, wouldn't feel comfortable with anything higher. So I guess I'm done if somebody could just confirm my conclusions. One last question, does Vcore affect RAM. Becuase if it does I guess I have to get better thermal paste than the stuff that came with my Zalman cooler and get another fan and try for 4.2.

 

i7 930

Gigabyte GA-X58A-UD3R

Radeon HD 5970

SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 32MB Cache

Windows 7 64 Bit

Crucial 6GB (2x3) DDR3 PC3-10600 CT3KIT25664BA1339

ZALMAN CNPS10X Performa 120mm Long life CPU Cooler

Thermaltake Toughpower XT TPX-775M 775W ATX 12V v2.3 / EPS 12V v2.9

 

Advanced CPU Features:

CPU Clock Ratio ................................ [19x]

Intel® Turbo Boost Tech .................. [Disabled]

CPU Cores Enabled ............................ [All]

CPU Multi Threading .......................... [Enabled]

CPU Enhanced Halt (C1E) ................... [Disabled]

C3/C6/C7 State Support .................... [Disabled]

CPU Thermal Monitor ......................... [Enabled]

CPU EIST Function ............................ [Disabled]

Virtualization Technology ................... [Disabled]

Bi-Directional PROCHOT ..................... [Enabled]

 

Uncore & QPI Features:

QPI Link Speed .............................. [Auto=36]

Uncore Frequency .......................... [17x]

Isonchronous Frequency ..................[Enabled]

 

Standard Clock Control:

Base Clock (BCLK) Control ................ [Enabled]

BCLK Frequency (MHz) .....................[191]

PCI Express Frequency (MHz) ........... [103]

 

C.I.A.2 [Disabled] Not sure what this is

 

Advanced Clock Control:

CPU Clock Drive ..............................[700mV]

PCI Express Clock Drive ................... [700mV]

CPU Clock Skew ............................. [0ps]

IOH Clock Skew ............................. [0ps]

 

Advanced DRAM Features:

Performance Enhance ...................... [standard]

Extreme Memory Profile (X.M.P) ......... [Disabled]

System Memory Multiplier (SPD) ........ [6x]

DRAM Timing Selectable (SPD) .......... [Quick]

 

Channel A + B + C

 

Channel A Timing Settings:

##Channel A Standard Timing Control##

CAS Latency Time ......................[9]

tRCD .......................................[8]

tRP .........................................[8]

tRAS .......................................[19]

 

##Channel A Advanced Timing Control##

tRC ........................................ [Auto]

tRRD .......................................[Auto]

tWTR ...................................... [Auto]

tWR ........................................[Auto]

tWTP .......................................[Auto]

tWL ........................................[Auto]

tRFC .......................................[Auto]

tRTP .......................................[Auto]

tFAW .....................................[Auto]

Command Rate (CMD) ................[1]

 

##Channel A Misc Timing Control##

Round Trip Latency ...................[Auto]

B2B CAS Delay ..........................[Auto]

 

Advanced Voltage Control:

 

CPU

Load Line Calibration ................. [Level 1]

CPU Vcore ...............................[1.275]

QPI/VTT Voltage 1.150v ............[1.34]

CPU PLL 1.800v .......................[1.88]

 

MCH/ICH

PCIE 1.500v ...........................[1.5]

QPI PLL 1.100v .......................[1.2]

IOH Core 1.100v .....................[1.2]

ICH I/O 1.500v .......................[1.5]

ICH Core 1.1v ........................[1.2]

 

DRAM

DRAM Voltage ..............[1.66]

DRAM Termination 0.750v [.82]

Ch-A Data VRef. 0.750v [.82]

Ch-B Data VRef. 0.750v [.82]

Ch-C Data VRef. 0.750v [.82]

Ch-A Address VRef. 0.750v [.82]

Ch-B Address VRef. 0.750v [.82]

Ch-C Address VRef. 0.750v [.82]

Edited August 26, 2010 by nms499